Table 2 Identification performance of gram-positives, gram-negatives and yeast by BCID2 compared to MALDI-TOF MS
Probes | # of isolates | TP | FN | TN | FP | Sensitivity (%) | Specificity (%) |
|---|---|---|---|---|---|---|---|
Gram Positive | |||||||
 S. aureus | 2 | 2 | 0 | 44 | 0 | – | – |
 S. lugdunesis | 1 | 1 | 0 | 45 | 0 | – | – |
Coagulase-negative Staphylococcus species | 3 | 3 | 0 | 43 | 0 | – | – |
 E. faecium | 2 | 2 | 0 | 44 | 0 | – | – |
 E. faecalis | 1 | 1 | 0 | 45 | 0 | – | – |
 Streptococcus species | 4 | 4 | 0 | 42 | 0 | – | – |
Gram Positive Total | 13 | 13 | 0 | 263 | 0 | 100.0 | 100.0 |
Gram Negative | |||||||
 E. coli | 6 | 6 | 0 | 40 | 0 | – | – |
 Klebsiella species | 10 | 10 | 0 | 36 | 0 | 100.0 | 100.0 |
 Enterobacter species | 2 | 2 | 0 | 44 | 0 | – | – |
 Citrobacter species | 1 | 1 | 0 | 45 | 0 | – | – |
 S. marcescens | 1 | 1 | 0 | 45 | 0 | – | – |
 P. aeruginosa | 4 | 4 | 0 | 42 | 0 | – | – |
 A. baumannii | 3 | 3 | 0 | 43 | 0 | – | – |
 Salmonella | 1 | 1 | 0 | 45 | 0 | – | – |
 N. meningitidis | 1 | 1 | 0 | 45 | 0 | – | – |
Gram Negative Total | 29 | 29 | 0 | 385 | 0 | 100.0 | 100.0 |
Anaerobes Total | 1 | 1 | 0 | 16 | 0 | – | – |
Yeasts |  |  |  |  |  | – | – |
 C. albicans | 1 | 1 | 0 | 0 | 0 | – | – |
 C. neoformans | 1 | 1 | 0 | 0 | 0 | – | – |
Yeast Total | 2 | 2 | 0 | 44 | 0 | – | – |
No organisms Total | 1 | 0 | 0 | 46 | 0 | – | – |
Total no. of Samples | 46 | 74 | 0 | 754 | 0 | 100.0 | 100.0 |